This new tutorial from NETTUTS.com takes a look at creating an online file storage system - uploading files and having them linked for download.

In this tutorial, I will show you how easy it is to create an online file storage system with PHP. You will learn how to upload files with PHP and list them by scanning the "uploads" folder.

You can download the source to get started right away or you can work through their tutorial - complete with code snippets and screenshots - to build out this simple system. They also throw in a little Javascript (jQuery) to show/hide files based on which of the file types you select.